The stacks at Harvard’s Widener Library are, I have come to believe, the best place to hide if you want to spend an afternoon reading uninterrupted but not alone. Widener has that rare charm conferred on a place only once it has been sufficiently drenched in history and filled with books—the most famous of which is certainly Harvard’s copy of the Gutenberg Bible, one of 48 still in existence. But Harvard is also home to a lesser-known literary artifact, stashed away in the school’s repository